Lenny RachitskyHost of Lenny's Podcast | Author of Lenny's Newsletter

Coding is no longer the bottleneck

24 Jun 2026 · 1 min

Watch on YouTube

0:46

Anthropic engineers now ship eight times more code per quarter than they did before, with Claude generating nearly all of it. Lenny Rachitsky says coding is no longer the bottleneck in software development, but verification and human expertise still matter for defining what good looks like.

Chapters

Anthropic engineers on average ship 8 times as much code per quarter as they did compared to 2021 to 2025. People may forget 100% of code was written by humans not long ago, and now it's getting to 100% of code written by AI. Coding is no longer the bottleneck.
Definitely, I think most commits are Claude-assisted, but also the throughput is so high. How do we think about verification? Claude is very good when you give it a framework to validate against those frameworks. It's all about trust but verify. The models are really good, but there are definitely a lot of areas that still need the verification. And so wherever you need the deep subject matter expertise, I would say that's an area to definitely still invest in. If you have a statement of what good looks like, get them to the repo and then code review can make sure it's still matching what you set up to do.